CVE-2026-42086
3 advisories.
RubyGems/openc3 CVE-2026-42086: medium 4.6, EPSS 0.29%
OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender
Action: Upgrade openc3 to 7.0.0 or later.
bundle update openc3Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 7.0.0 | - |
Fixed versions
| 7.0.0 |
Sources
- osv: GHSA-ffq5-qpvf-xq7x
- https://github.com/OpenC3/cosmos/security/advisories/GHSA-ffq5-qpvf-xq7x
- https://nvd.nist.gov/vuln/detail/CVE-2026-42086
- https://github.com/OpenC3/cosmos
- https://github.com/pypa/advisory-database/tree/main/vulns/openc3/PYSEC-2026-105.yaml
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2026-42086.yml
CVE-2026-42086 · published · modified · JSON
PyPI/openc3 CVE-2026-42086: medium 4.6, EPSS 0.29%
OpenC3 COSMOS is Vulnerable to Self-XSS Through the Command Sender
Action: Upgrade openc3 to 7.0.0 or later.
pip install openc3==7.0.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 7.0.0 | - |
Fixed versions
| 7.0.0 |
Sources
- osv: GHSA-ffq5-qpvf-xq7x#PyPI/openc3
- https://github.com/OpenC3/cosmos/security/advisories/GHSA-ffq5-qpvf-xq7x
- https://nvd.nist.gov/vuln/detail/CVE-2026-42086
- https://github.com/OpenC3/cosmos
- https://github.com/pypa/advisory-database/tree/main/vulns/openc3/PYSEC-2026-105.yaml
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/openc3/CVE-2026-42086.yml
CVE-2026-42086 · published · modified · JSON
PyPI/openc3 CVE-2026-42086: medium 4.6, EPSS 0.29%
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to version 7.0.0, the Command Sender UI uses an unsafe eval() function on
Action: Upgrade openc3 to 7.0.0 or later.
pip install openc3==7.0.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 7.0.0 | - |
Fixed versions
| 7.0.0 |
Sources
CVE-2026-42086 · published · modified · JSON